Home / 4,815.30-6,638.94-3,949.76

Finding the Fourth Proportional to 4,815.30, 6,638.94 and 3,949.76

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Solution

The fourth proportional to 4,815.30, 6,638.94 and 3,949.76 is: 5,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.30 : 6,638.94 = 3,949.76 : x
  2. Step 2: Convert to fraction form
    4,815.30/6,638.94 = 3,949.76/x
  3. Step 3: Cross multiply
    4,815.30x = 6,638.94 × 3,949.76
  4. Step 4: Simplify right side
    4,815.30x = 26,222,186.46
  5. Step 5: Solve for x
    x = 26,222,186.46/4,815.30
  6. Step 6: Final answer
    x = 5,445.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.